Safety razor



M. PELIZZOLA Aug. 1 1933.

SAFETY RAZOR Filed Nov. '1, 1929 $7 722/433 N r e/v To 1% Patented Aug.1, 1933 SAFETY RAZOR Mino Pelizzola, Milan, Italy Application November1, 1929, Serial No. 404,180,

and in Italy N 2 Claims.

- The present invention relates to a multiblade safety razor.

The novel razor is essentially distinguished by the fact that itcomprises at least two blades carried by supporting means adapted tomaintain their cutting edges in parallel and stepped relationship toeach other.

This characteristic arrangement offers the advantage that the shavingcan be performed more quickly and more regularly, since the hair is outby the various cutting edges in succession, the first edge efiecting acoarse shaving and the following edges effecting a closer shaving.Moreover the angle of incidence made by the cutting edges with the skin,once the most convenient angle has been established, the blades can bepermanently fixed with their edges at that angle.

The razor according to the invention is illustrated, by way of exampleonly, in the accomthe invention.

Fig. 1 is a partial longitudinal elevation at a conveniently enlargedscale of the preferred embodiment of the invention, the blade part beingshown in cross section along 11 in Fig. 2.

Fig. 2 is a top plan view looking in the direction indicated by thearrows 2-2 in Fig. 1.

Figs. 3 and 4 respectively show the safety plate in plan, and in crosssection along 4-4 in Fig. 3.

Figs. 5 and 6 are similar views of a spacing plate.

Fig. '7 shows a blade particularly adapted for use in connection withthe razor.

Fig. 8 shows an ordinary safety razor blade which has been slightlymodified for use in the razor according to the invention.

Fig. 9 is a view similar to Fig. 1, showing a second modification of theinvention.

In the first form of the invention (Figs. 1 to 8) the blades which are,for instance five in number viz. 1, 2, 3, 4, 5, are alternately arrangedwith the spacing plates 6, 7, 8, 9, 10, the resulting arrangement beingclamped between two locking blocks 11 and 12. razor handle 13, and meansare provided for clamping the block 11 to the block'12 to provide acasing for the assembled parts.

The clamping means are of detachable type ,and comprise two pins 14, oneend of which is fiifed 0 to the locking block 11; the two pins areinserted into the holes 1b, 16, 17 provided respectively in the bladesspacing plates and locking block 12. Each pin projects past the hole 17and is screw-threaded for reception of a nut 18.

As v.11 be seen from the drawing, the pins 14 panying drawing in apreferred embodiment of The block 12 is fixed to the ovember 8, 1928 areset at substantially right angles to the blades as well as to thespacing plates and to the plane surfaces of the blocks 11 and 12, sothat owing to the gradually increasing .distance of the holes 15 and 16from the longitudinal edges of the succes- 5o sive blades and plates,the characteristic stepped arrangement of the cutting edges 19 of theblades is obtained.

In this embodiment of the invention, the base plate 6 (see also Figs. 3and 4) is provided with 5 safety teeth 20; the spacing plates '7, 8, 9,10 (see also Figs. 5 and 6) show a recess 21 at their edge near thecutting edge of the blades, so as to leave the cutting edge free exceptat its two ends. It is obvious, however, that also the spacing plates'70 might be fitted with safety teeth instead of the recessed edge. Inorder to leave the cutting edge free, the teeth 20 have a recess orcut-away portion 21'.

The blades 1, 3, 5 are advantageously provided with six holes 15 (threefor each pin 14) whereas the blades 2 and 4 have only two pairs of holes15. With this provision the object is reached that the cutting edges canbe set in stepped relationship to one another by threading each blade onso the pins 14 by a convenient pair of their holes 15, for instance theblade 1 having three holepairs by the hole-pair that is farthest awayfrom the cutting edge, the blade 2 (having two holepairs) by thehole-pair which is farthest away from the cutting edge, the blade 3(having three hole-pairs) by the center hole-pair, and so on.

It should be-noticed that, as each blade is firmly held between twoplates, the blades are not flexed and can accordingly be manufacturedwith fully hardened steel so that the edges may be quite sharp and havea long life.

It is obvious that, in combination with the razor according to theinvention, also blades of ordinary safety razor types (for instanceGillette) can be used. To this effect it will suflice (Fig.

8) to form holes 15a, in such blades so as to enable them to be threadedon the above said connection means.

In the modified construction illustrated by Fig. 9 the pins 141) areinclined relatively to the blades. Accordingly all the holes 16b of areplates 61), '71), etc. may be formed in the same center position; thesame applies to the holes 15b of the blades. For instance the bladeholes may be arranged in the same manner as in the ordinary Gilletteblades so as to allow of their interchangeability. As will be gatheredfrom the drawing, the plate holes 16b are inclined relano tively' to theplate surfaces.

the razor will not be liable to rust or any other alteration.

When the blade edge has worn out on one side (the which occurs afternumerous shavings) one can disassemble the razor parts and re-sharpenthe cutting edges.

Numerous variations may be devised of the present invention. Forinstance, the blades instead of being laid flat might receive a certaincurvature on their being mounted in the razor. The clamping and spacingmeans might be of a different type. ,The assembled cutting edges,instead of being arranged in a plane surface, might be arranged to forma somewhat curved surface, and so on without departing from the spiritand scope of the invention.

Having now described my invention and how the same is to be carried out,what I claim as my invention is: i

1. A safety razor comprising a lower block having a handle fixedthereto, an upper block having pins fixed thereto, said pins beingpassable through apertures in the lower block, a plurality of cuttingblades between the blocks and having cutting edges upon theirlongitudinal edges, said blades being of the same width, said bladeshaving a plurality of transversely alined holes therein, plates betweenthe blades having openings therein through which the pins are passable,said pins being adapted to selectively engage the holes of the blades tomaintain the cutting blades in stepped parallel relation, and a clampingnut engaged with the pins and bearing against the lower block to holdthe blades and plates clamped between the blocks.

-2. A safety razor comprising a pair of blocks, a handle fixed to oneblock, blades having the same width and arranged in a plane between theblocks, flat spacing plates between, the blades and being in intimatecontact therewith throughout their width, the said. blades, blocks andplates being disposed in inclined relation with respect to thelongitudinal axis of the handle, each blade having a cutting ,edge onits longitudinal sides and clamping means cooperating with the blocksfor holding the longitudinal edges of the blocks, blades and plates instepped relationship and the cutting edges of the blades in the sameparallel plane.

MINO PELIZZOLA.

